{"id":184048,"date":"2020-10-30T19:40:57","date_gmt":"2020-10-30T11:40:57","guid":{"rendered":"http:\/\/4563.org\/?p=184048"},"modified":"2020-10-30T19:40:57","modified_gmt":"2020-10-30T11:40:57","slug":"mysql-%e7%9a%84-limit-%e4%b8%ba%e4%bb%80%e4%b9%88%e8%bf%99%e4%b9%88%e5%bf%ab%e5%95%8a%ef%bc%9f-1000-%e5%a4%9a%e4%b8%87%e7%9a%84%e8%a1%a8%e5%8f%aa%e9%9c%80%e8%a6%81-0-0-%e5%87%a0%e7%a7%92","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=184048","title":{"rendered":"mysql \u7684 limit \u4e3a\u4ec0\u4e48\u8fd9\u4e48\u5feb\u554a\uff1f 1000 \u591a\u4e07\u7684\u8868\u53ea\u9700\u8981 0.0 \u51e0\u79d2"},"content":{"rendered":"
\n
\n
\n

mysql \u7684 limit \u4e3a\u4ec0\u4e48\u8fd9\u4e48\u5feb\u554a\uff1f 1000 \u591a\u4e07\u7684\u8868\u53ea\u9700\u8981 0.0 \u51e0\u79d2 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : ReinerShir <\/span> <\/i> 3<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
\u6211\u4f7f\u7528 explain \u770b\u4e86\u4e0b\uff0ctype \u662f ALL \u8d70\u7684\u5168\u8868\u626b\u63cf\uff0cexplain \u4fe1\u606f\u5982\u4e0b\uff1a
rows:10213156 filtered:100.00 select_type:SIMPLE extra:Using where; Using join buffer (hash join)
mysql 5.8 \u7248\u672c
\u6709\u5927\u4f6c\u89e3\u91ca\u4e0b\u5417\uff1f <\/div>\n
\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (19<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : wysnylc <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4f60\u67e5\u7b2c 500 \u4e07\u6761\u8bd5\u8bd5 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : ReinerShir <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @wysnylc \u54e6\u54e6\uff0c\u660e\u767d\u4e86\uff0cbtree \u7684\u5b58\u50a8\u662f\u6309\u987a\u5e8f\u6765\u7684\uff0c\u6240\u4ee5\u884c\u6570\u5c0f\u7684\u65f6\u5019\u67e5\u7684\u5f88\u5feb<\/p>\n

    \u53e6\u5916\u8fd8\u60f3\u95ee\u4e0b\uff0c1000 \u591a\u4e07\u6570\u636e\u7684\u8868\u53ea\u8981\u52a0\u4e0a\u7d22\u5f15\u7684\u8bdd\u67e5\u8be2\u65f6\u95f4\u57fa\u672c\u5728 0.0 \u51e0\u79d2\u5185\uff0c\u4f3c\u4e4e\u5e76\u6ca1\u6709\u5206\u8868\u7684\u5fc5\u8981\uff0c\u80fd\u8bf4\u4e0b\u6570\u636e\u91cf\u8981\u591a\u5927\uff0c\u6216\u8005\u8bf4\u4ec0\u4e48\u4e1a\u52a1\u573a\u666f\u624d\u9700\u8981\u5206\u8868\u5417\uff1f <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : liuzhaowei55 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u53ef\u4ee5\u5bf9\u6bd4\u4e0b\u4e0d\u540c\u6570\u636e\u91cf\u4e0b update \u8bed\u53e5\u7684\u65f6\u95f4\u6d88\u8017 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : hahasong <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8868\u5927\u5c31\u522b limit \u4e86\uff0c\u6309 id \u8303\u56f4\u67e5 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : itsql <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u600e\u4e48\u67e5\u7684\uff0c1000 \u591a\u4e07\u7684\u8868\u53ea\u9700\u8981 0.0 \u51e0\u79d2\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : cat <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @itsql \u67e5\u524d\u51e0\u6761\u5c31\u53ef\u4ee5 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : PonysDad <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5982\u679c\u7ffb\u5230\u540e\u9762\u7684\u4e5f\u662f,1000w \u6570\u91cf\u5c31\u7b97 using index \u4e5f\u4e0d\u53ef\u80fd 0.0 \u51e0\u79d2\u7684\u5427. <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Xusually <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5206\u9875\u5230\u540e\u9762\u518d\u8bd5\u8bd5 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : qwerthhusn <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    MySQL \u6709 5.8 \uff1f\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : itsql <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @cat \u54e6\uff0c\u8fd9\u6837\u7684\uff0c\u6211\u4ee5\u4e3a\u76f4\u63a5\u67e5 limit 1000 \u591a\u4e07\u6761\u51fa\u6765\uff0c\u8fd9\u4e48\u795e\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : geekzhu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @qwerthhusn #9 \u4e0d\u5c31\u662f MySQL 8 == MySQL 5.8 \u4e48\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : dorothyREN <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    limit \u5feb\u4e0d\u7a00\u5947\uff0c\u8fd8\u5f97\u770b offset \u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : qwerthhusn <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @geekzhu MySQL8 !== MySQL5_8 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : ReinerShir <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @liuzhaowei55 \u662f\u7684\uff0c\u5982\u679c\u4e0d\u4f7f\u7528 ID \u6216\u7d22\u5f15\u505a\u4e3a\u66f4\u65b0\u6761\u4ef6\uff0c\u65f6\u95f4\u4f1a\u5f88\u957f<\/p>\n

    @qwerthhusn MYSQL8 \uff0c5.7 \u7a81\u7136\u6539\u540d 8 \u6ca1\u8f6c\u8fc7\u6765<\/p>\n

    @hahasong \u5982\u679c ID \u4e0d\u662f\u8fde\u7eed\u7684\u5c31\u4e0d\u884c\u5427\uff1f \u90a3\u6837\u4f1a\u5c11\u6761\u6570\uff0c\u6bd4\u5982 1-10 \u7684 ID \u4e2d\u95f4\u5c11\u4e86 8\uff0c\u90a3\u4e48\u6839\u636e>=1 and <=10 \u5c31\u4f1a\u53ea\u67e5\u51fa 9 \u6761\uff0c\u4e0d\u77e5\u9053\u6211\u7406\u89e3\u7684\u5bf9\u4e0d\u5bf9\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : ReinerShir <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @hahasong \u67e5\u4e86\u4e00\u4e0b\uff0c\u4f60\u8bf4\u7684\u662f\u8fd9\u79cd\u5417\uff1aselect * from TEST_SUB_ORDER A join (
    select id from TEST_SUB_ORDER S ORDER BY ID limit 10000000,20) AS B ON A.ID=B.ID <\/p>\n

    \u5373\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\u67e5\u8be2\u65f6\u95f4\u8fd8\u662f\u957f\u8fbe 4 \u79d2\uff0c\u8bf7\u95ee\u6709\u529e\u6cd5\u63a7\u5236\u5728 1 \u79d2\u5185\u5417\uff1f <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : aragakiyuii <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    ‘\u5982\u679c ID \u4e0d\u662f\u8fde\u7eed\u7684\u5c31\u4e0d\u884c\u5427\uff1f \u90a3\u6837\u4f1a\u5c11\u6761\u6570\uff0c\u6bd4\u5982 1-10 \u7684 ID \u4e2d\u95f4\u5c11\u4e86 8\uff0c\u90a3\u4e48\u6839\u636e>=1 and <=10 \u5c31\u4f1a\u53ea\u67e5\u51fa 9 \u6761\uff0c\u4e0d\u77e5\u9053\u6211\u7406\u89e3\u7684\u5bf9\u4e0d\u5bf9\u3002’<\/p>\n

    \u7528\u8fd9\u79cd ‘where id > xx limit 10’ <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : hahasong <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ReinerShir #15 \u4e0a\u6b63\u89e3 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : ReinerShir <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @aragakiyuii
    @hahasong \u662f\u7684\uff0c\u6211\u8bd5\u4e86\u4e0b\u7528 ID \u5206\u9875\u4e2d\u95f4\u5c11\u4e86\u6761\u6570\u636e\u5c31\u4f1a\u4e0d\u5bf9\uff0c\u6ca1\u6709\u5176\u5b83\u597d\u7684\u529e\u6cd5\u4e86\u5417\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : aragakiyuii <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ReinerShir #18 \u522b\u628a id \u7684\u503c\u5f53\u6210 offset \u7b97
    \u5206\u9875\u7684\u65f6\u5019\u524d\u53f0\u628a\u663e\u793a\u7684\u6700\u540e\u4e00\u6761\u8bb0\u5f55\u7684 id \u4f20\u8fc7\u6765\uff0c\u6bcf\u9875\u8bb0\u5f55\u6761\u6570\u4f20\u8fc7\u6765\u3002\u67e5\u8be2\u7684\u65f6\u5019\u7528 where id > #{previousId} limit #{pageSize} <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    mysql \u7684 limit \u4e3a\u4ec0\u4e48…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/184048"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=184048"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/184048\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=184048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=184048"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=184048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}